ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,321, issued on July 15, was assigned to DePuy Synthes Products Inc. (Raynham, Mass.).

"Osteotomy guide" was invented by Mingjun Zhang (Jiangsu, China), Qiang Xu (Jiangsu, China), Wenhao Qi (Jiangsu, China), Weiwei Xiang (Jiangsu, China) and Xiaolong Wang (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An osteotomy guide (100,500,600) guides cutting of a bone (300). The guide (100,500,600) has an anterior end (106,506,606) and a posterior end (108,508,608) that are spaced from one another along a transverse direction. The guide (100,500,600) has an inner surface (102,502,602) that faces the bone (300), and an outer surface (104,504,604...